Some molecules or particles are too large or too hydrophilic to pass through a lipid bilayer. Other molecules could pass through the bilayer but must be transported rapidly in such large numbers that channel-type transport is impractical.
Vanna White Has the World's Most G-Rated Wardrobe Malfunction on 'Wheel of Fortune'. by 11:56 AM PST, December 11, 2015. Playing Vanna White Has the World's Most G-Rated Wardrobe Malfunction on 'Wheel of Fortune'. Vanna White found herself in a sticky situation during Thursday's Wheel of Fortune. While walking across the stage, the hostess, unbeknownst to her, brought part of the set with her when a prop gift got caught on the bottom of her dress.
General Motors has recalled 1.6 million vehicles because of a faulty ignition switch (PDF). GM said a heavy key ring or a âjarring event,â such as running off the road, could cause the ignition to slip out of position, shutting off the power and causing the air bags to fail in a crash. GM has linked 13 deaths to the defective switch.